Alannah is a distinctive girls' name in England & Wales, ranking #683 in 2020 with 54 recorded births. The name reached its all-time peak in 2017 with 103 births ranking #427. Since 1996, the popularity has decreased by 36.5%. In 2020, approximately 1 in every 4,970 girls born was named Alannah. RISING Recent data shows the name is currently rising.